RT Journal Article SR Electronic T1 Breath Test, Endoscopy, and Peptic Ulcer Disease–Reply–I JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 241 OP 242 DO 10.3122/jabfm.10.3.241c VO 10 IS 3 A1 Zoorob, Roger J. YR 1997 UL http://www.jabfm.org/content/10/3/241.3.abstract AB